using System;

namespace ILMXFrameWork.XMA.SQL
{
	/// <summary>
	/// COnvert SQL Query to DataTable.
	/// </summary>
    /*Copyright (c) 2009, Joseph Stepongzi
    All rights reserved.
    Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
    * Neither the name of Joseph Stepongzi nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
    AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
    STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
     */
	public class SQLtoDataTable
	{
        // variables
		private SQLConnection sqlConnection = null;
		private string sqlQuery = null;
		private string server = null;
		private string db = null;
		private string user = null;
		private string pswd = null;
		private System.Data.DataTable dt = null;

        /// <summary>
        /// Return the DataTable created.
        /// </summary>
		public System.Data.DataTable GetDataTable()
		{
			return dt;
		}

        /// <summary>
        /// Read data from sql and put into DataTable.
        /// </summary>
		private void ReadData()
		{
			dt = new System.Data.DataTable();
			System.Data.SqlClient.SqlDataAdapter sqlDa = sqlConnection.ReadQueryDataAdapter(sqlQuery);
			sqlDa.Fill(dt);
		}
        /// <summary>
        /// Constructor
        /// </summary>
        /// <param name="sqlQuery">The Base SQL Query.</param>
        /// <param name="server">The name of the sql server to connect to.</param>
        /// <param name="db">The database instance to connect to.</param>
        /// <param name="user">The username used to connect to sql.</param>
        /// <param name="pswd">The password used to connect to sql.</param>
		public  SQLtoDataTable(string sqlQuery, string server, string db, string user, string pswd)
		{
            // variables
			this.sqlQuery = sqlQuery;
			this.server = server;
			this.db = db;
			this.user = user;
			this.pswd = pswd;

            // Open a new SQL Connection to the sql server.
			sqlConnection = new SQL.SQLConnection(server, db, user, pswd);
            try
            {
                sqlConnection.Open();
                ReadData();
            }
            finally
            {
                // Close the SQL COnnection.
                sqlConnection.Close();
            }
		}
	}
}
